ZoneAlarm has been around for years, and is still one of the most popular Windows firewall programs around (about 1.6 million CNET downloads to date).

As reported on gHacks, Checkpoint will be giving away the 2009 Pro version tomorrow - complete with one year of updates. We're not sure about the exact URL for the promotion, but gHacks thinks it will probably be associated with this address.

ZoneAlarm Pro adds anti-spyware protection to ZoneAlarm's firewall product. Pair that with your favorite antivirus program, and you have a full security suite!

The latest version of the ZoneAlarm family has received good reviews. CNET Australia reviewed ZoneAlarm Internet Security Suite 2009 and said, "ZoneAlarm Internet Security 2009 provides top-notch fundamental security protection that is light on system resources, allowing you to work unencumbered." It's also a perennial favorite of PC World, winning Editor's Choice awards four years in a row.

If you're not a fan of ZoneAlarm, you may want to check out Comodo's latest offering.

We'll see if the Checkpoint servers can cope with the increased demand. I'm sure we all remember what happened with the Codeweavers giveaway last month.

Update: at 6am Pacific, this page will be changed to offer the free Pro version.

Update: It's 6am Pacific, and still no link. The traffic has started. As I expected, their servers weren't able to handle the influx and there's a "we're sorry!" message up now.

Update: It's Live! Go and get it!